def isHappy(n):
while True:
temp = 0
for i in str(n):
temp += int(i) ** 2
n = temp
if n == 4:
return False
elif n == 1:
return True
- The
isHappy()
function is used to determine whether the given numbern
is a happy number - To determine if a number is a happy number, we sum the squares of its digits, which is done by the for loop in the code
- If a number is not a happy number, it will eventually fall into a endless cycle that includes 4
- So if a number becomes 4 at some point, we know it's not a happy number and therefore the function returns
False
- According to the definition of happy number, if a number becomes 1, it is a happy number so the function returns
True
Input
The command shows the OS information installed in the Docker container
docker exec ossp-container cat /etc/os-release
Output
PRETTY_NAME="Ubuntu 24.04.1 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.1 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=noble LOGO=ubuntu-logo
Input
The command shows the version of Git installed in the Docker container
docker exec ossp-container git --version
Output
git version 2.43.0
Input
The command shows the version of Python installed in the Docker container
docker exec ossp-container python3 --version
Output
Python 3.12.3
Input
The command shows the path of mounted directory in the Docker container
docker inspect --format="{{ .HostConfig.Binds }}" ossp-container
Output
[/Users/space/Library/CloudStorage/OneDrive-성균관대학교/24-2/Open Source/Docker files:/mnt/ossp_container_dir]